What was found
CAPT'S OXYGEN MASK INHALATION VALVE FLUTTERS WHEN USED. REPLACED CAPT`S OXYGEN MASK ASSY PER MM 35-11-51. LEAK CHECK GOOD AND MIC OPS NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CAPT'S OXYGEN MASK INHALATION VALVE FLUTTERS WHEN USED. REPLACED CAPT`S OXYGEN MASK ASSY PER MM 35-11-51. LEAK CHECK GOOD AND MIC OPS NORMAL.